US Bridges

SR 1018 over Keystone Lake

Good

Westmoreland County, Pennsylvania · 2.85 MI E from SR 0981 · Structure no. 000000000044457

Built
2008
17 years old
Condition
Good
inspected July 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
53 ft
1 main span
Daily traffic
1,960
2024 count
Owner
State
State Highway Agency

About this bridge

SR 1018 over Keystone Lake is a prestressed concrete box beam or girders - multiple carrying SR 1018 over Keystone Lake in Westmoreland County, Pennsylvania. It was built in 2008, so it is 17 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,960 vehicles a day, roughly 11% of them trucks, projected to reach 1,583 by 2032. The structure is 53 ft (16.2 m) long and 38 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSR 1018
CrossesKeystone Lake
Location2.85 MI E from SR 0981
RouteState Highway 0
Coordinates40.37326, -79.37645
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.8 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length53 ft (16.2 m)
Longest span50 ft (15.2 m)
Deck width38 ft (11.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,960 (2024)
Projected traffic1,583 by 2032
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 1018 over Keystone Lake built?

It was built in 2008, making it 17 years old in 2025.

What condition is SR 1018 over Keystone Lake in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2021.

How much traffic does SR 1018 over Keystone Lake carry?

About 1,960 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is SR 1018 over Keystone Lake?

The structure is 53 ft (16.2 m) long with a longest span of 50 ft (15.2 m) and a deck 38 ft wide.

Who owns SR 1018 over Keystone Lake?

It is owned by the State Highway Agency.